Home / 263,290.57-394,935.55-105,629.74

Finding the Fourth Proportional to 263,290.57, 394,935.55 and 105,629.74

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Solution

The fourth proportional to 263,290.57, 394,935.55 and 105,629.74 is: 158,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,290.57 : 394,935.55 = 105,629.74 : x
  2. Step 2: Convert to fraction form
    263,290.57/394,935.55 = 105,629.74/x
  3. Step 3: Cross multiply
    263,290.57x = 394,935.55 × 105,629.74
  4. Step 4: Simplify right side
    263,290.57x = 41,716,938,211.84
  5. Step 5: Solve for x
    x = 41,716,938,211.84/263,290.57
  6. Step 6: Final answer
    x = 158,444.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.